V8er

iTrader: (2)

I need a new set of pistons and rings for my LS1. Who makes the best forged pistons? I am looking to keep the same compression as the stock piston but with flycuts. I would also like to over-bore as much as possible (347ci).

So far it looks like Diamonds are the most popular....but are they the best and lightest?

TNormZ28

iTrader: (9)

Diamond.

69firebird

iTrader: (14)

mahle,
they make the stock pistons, they make a nice forged unit as well
ed

smask04C5

iTrader: (1)

Diamond makes a nice part, as does Mahle. Never had a piston failure in ten years running diamons in 418 small block

69firebird

iTrader: (14)

ive had diamonds, im not ******* them at all, i have a set of them in the garage currently.

With using the stock rods, figured this was somewhat a budget build, and the mahles are a good bit cheaper and come with rings. thats all

either one is a good choice, i loved the diamonds i had

MUSTANGEATER

iTrader: (10)

Mahle's are goin in my motor. I would say you can't go wrong with Wiseco's, Mahle's, Diamond's or JE's.

Make sure you get the correct Pin for the stock Rods.


Floyd.

V8er

iTrader: (2)

Anyone know of a good source (sponsor) who would have these in stock?

Thanks

MUSTANGEATER

iTrader: (10)

Lingenfelter. It's what they use in their "budget" 348 CID motors.

Viper

iTrader: (6)

I got the budget motor from LPE with the Mahle's.

According to a PDF off of the Mahle site:

CHEVROLET LS1

Rod Pin Comp. Dome Weight C/R

Bore Stroke Length Dia. Height Volume Grams 64cc Part Number

3.898 3.622 6.098 .945* 1.340 -2cc 386 10.0 LS1340898F02

3.905 3.622 6.098 .945* 1.340 -2cc 390 10.0 LS1340908F02

3.898 3.622 6.125 .927 1.314 -2cc 390 10.0 LS1314898F02

3.905 3.622 6.125 .927 1.314 -2cc 394 10.0 LS1314905F02

3.898 3.662 6.098 .945* 1.340 -9cc 376 9.8 LS1340898I09

3.905 3.662 6.098 .945* 1.340 -9cc 380 9.9 LS1340905I09

3.898 3.662 6.125 .927 1.314 -9cc 380 9.8 LS1314898I09

3.905 3.662 6.125 .927 1.314 -9cc 384 9.9 LS1314905I09

* Designed as a "drop in" oversize replacement for the OE piston

1-888-255-1942 www.mahlemotorsports.com
----


I also noticed texas speed now carries the Mahle pistons as well although NOT in a -2cc model. FWIW.

69firebird

iTrader: (14)

go to www.texas-speed.com i got my pistons from them, there a sponsor, and they got them to me in under a week, having to order them.

the pistons are nice, texas speed has a very nicly laid out web site, youll be able to find exactly what your looking for
ed

V8er

iTrader: (2)

...but they don't have any in stock. I would order a set today if one of the sponsors had the correct set in stock

Pumba

If you are looking for the least expensive piston, Diamond is a fair choice.

If you are looking for the best piston, start with JE

V8er

iTrader: (2)

I think it is fair to say I am looking for the best, providing they aren't $1000set. Can anyone tell me why the JEs are better than the Diamonds? If they are lighter I am sold!